Question

Polygon ABCD is reflected and dilated to give polygon PQRS. The coordinates of the preimage are (2, 2), (6, 8), (12, 8), and (16, 2). The coordinates of the image are (11, 15),
(9, 12), (6, 12), and (4, 15). What is the scale factor of the dilation?

Answer 1

@EclipsedStar

Answer 2

@beamarie

Answer 3

@Michele_Laino

Answer 4

@olivier008

Answer 5

0.25


0.33


0.5


0.75

Answer 6

0.5 its reflected to y= 10 and every side is divided by 2.

Answer 7

can you help me with one more question

Answer 8

A similarity transformation maps Δ ABC to Δ JKL. The measure of ∠A of preimage Δ ABC is 105°. The scale factor of the dilation in the similarity transformation is 1.5. If ∠A in the preimage corresponds to ∠J in the image, what is m∠J ?



70°


140°


105°


35°

Answer 9

@Michele_Laino

Answer 10

@olivier008

Answer 11

Hint:
a dilation can not affect the amplitudes of the angles

Answer 12

sooo 105?

Answer 13

that's right!

Answer 14

thank you so much

Answer 15

Thank you! :)